Pagen holiday for celebration of nature and spirits/energy that Catholic's adapted and renamed "Eve of All Saint's Day" or "Hallowed Eve" (becoming "Halloween"). On this day - October 31st - people are encouraged to dress up and "trick ot treat" to fool the spirits that roam the earth.

It's when you dress up in either cheap, store-bought costumes or elaborate, self-made ones, watch Rocky Horror Picture Show, get your friends to do the Time Warp, and go on a severe candybinge. Until someone spoils your fun by reminding you that it's April.